State True or False:
a. A triangular prism has three lateral faces and one triangular base.
b. A cuboid is also called a rectangular prism.

State whether true (T) or false (F) : A cylinder has two flat faces .

A prism is a piece of trasparent material having three triangular surfaces and two rectangular surfaces.

A triangular plate has two cavities , one square and one rectangular as shown in figure . The plate is heated.

Is it true that a cuboid is also known as a rectangular prism? What is the shape of the lateral faces of this prism?

A prism is a piece of trasparent material having three rectangular surfaces and _____ triangular surfaces.

State whether true (T) or false (F) : A cuboid has more edges than vertices .

State whether true (T) or false (F) : A cone has only one face .

In each of the following, state if the statement is true (T) or false (F). A triangle has three sides A triangle may have four vertices. Any three line-segment make up a triangle The interior of a triangle includes its vertices. The triangular region includes the vertices of the corresponding triangle. The vertices of a triangle are three collinear points. An equilateral triangle is scalene. Every right triangle is scalene. Each acute triangle is equilateral. No isosceles triangle is obtuse.

The cross section of a glass prism has the form of an isosceles triangle. One of th erefracting faces is silvered. A ray of light falling normally on the other refracting face, being reflected twice, emerges through the base of the prism perpendicular to it. Find the angles of the prism.

State whether true (T) or false (F) : A cylinder has only one vertex.